Abstract: Disclosed are an apparatus and method for transmitting/receiving image data. The method for transmitting image data includes classifying each pixel of image data into upper bits and lower bits, enabling the classified upper bits to be included in a payload of a Most Significant Bit (MSB) packet, and also enabling the classified lower bits to be included in a payload of a Least Significant Bit (LSB) packet, generating a header of the MSB packet and a header of the LSB packet, combining the payload and the header to respectively generate the MSB packet and the LSB packet, and transmitting the generated MSB packet and the LSB packet.

Abstract: Disclosed are an apparatus and method for transmitting/receiving image data. The method for transmitting image data includes classifying each pixel of image data into upper bits and lower bits, enabling the classified upper bits to be included in a payload of a Most Significant Bit (MSB) packet, and also enabling the classified lower bits to be included in a payload of a Least Significant Bit (LSB) packet, generating a header of the MSB packet and a header of the LSB packet, combining the payload and the header to respectively generate the MSB packet and the LSB packet, and transmitting the generated MSB packet and the LSB packet.

Abstract: An apparatus for easily measuring the quality of gallium nitride (GaN) in normal conditions such as an atmospheric pressure and room temperature. The apparatus includes a light source disposed above a GaN substrate and a measuring unit disposed above the GaN substrate. The light source emits light to a surface of the GaN substrate. The measuring unit measures the quality of the GaN substrate based on the spectrum of light radiated from the GaN substrate.

Abstract: A method of manufacturing a gallium nitride (GaN) substrate and a GaN substrate manufactured by the same. The method includes the steps of growing a GaN film on a base substrate and separating the base substrate from the GaN film. The step of growing the GaN film includes forming pits in the GaN film, the pits inducing an inversion domain boundary to be formed inside the GaN film. The GaN substrate can have a predetermined thickness with which it can be handled during layer transfer (LT) processing, and the warping of the GaN substrate can be minimized, thereby preventing cracks due to warping.

Abstract: Provided is a method and apparatus for transmitting and receiving data using a polarization transmission in a line-of-sight (LOS) radio communication system. An for transmitting data using a polarization transmission in a LOS radio communication system may include: an antenna unit including at least two antennas to transmit or receive via a different polarization path; a polarization data setting unit to set the different polarization path for each of the at least two antennas; and a resource allocation unit to set a transmission scheme according to a data characteristic and a service type, and to allocate a resource to be transmitted via the different polarization path according to the transmission scheme.

Abstract: A method of manufacturing a gallium nitride (GaN) substrate and a GaN substrate manufactured thereby. The method includes the steps of growing an aluminum nitride nucleation layer on a base substrate, growing a first gallium nitride film on the base substrate on which the aluminum nitride nucleation layer has been grown, the first gallium nitride film having a first content ratio of nitrogen to gallium, and growing a second gallium nitride film on the first gallium nitride film, the second gallium nitride film having a second content ratio of nitrogen to gallium which is lower than the first content ratio. Self-separation between the base substrate and the GaN substrate is possible during the growth process, thereby precluding mechanical separation, increasing a self-separation area, and minimizing the occurrence of warping.

Abstract: Disclosed are an apparatus and method for transmitting/receiving image data. The method for transmitting image data includes classifying each pixel of image data into upper bits and lower bits, enabling the classified upper bits to be included in a payload of aMost Significant Bit (MSB) packet, and also enabling the classified lower bits to be included in a payload of a Least Significant Bit (LSB) packet, generating a header of the MSB packet and a header of the LSB packet, combining the payload and the header to respectively generate the MSB packet and the LSB packet, and transmitting the generated MSB packet and the LSB packet.

Abstract: Disclosed are an apparatus and method for transmitting/receiving image data. The method for transmitting image data includes classifying each pixel of image data into upper bits and lower bits, enabling the classified upper bits to be included in a payload of a Most Significant Bit (MSB) packet, and also enabling the classified lower bits to be included in a payload of a Least Significant Bit (LSB) packet, generating a header of the MSB packet and a header of the LSB packet, combining the payload and the header to respectively generate the MSB packet and the LSB packet, and transmitting the generated MSB packet and the LSB packet.

Abstract: Provided is a method and apparatus for transmitting and receiving data using a polarization transmission in a line-of-sight (LOS) radio communication system. An for transmitting data using a polarization transmission in a LOS radio communication system may include: an antenna unit including at least two antennas to transmit or receive via a different polarization path; a polarization data setting unit to set the different polarization path for each of the at least two antennas; and a resource allocation unit to set a transmission scheme according to a data characteristic and a service type, and to allocate a resource to be transmitted via the different polarization path according to the transmission scheme.